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. 2020 May 7;11(5):327. doi: 10.1038/s41419-020-2510-4

Fig. 4. HucMSC-Ex delivered CK1δ and β-TRCP to promote YAP ubiquitination and degradation.

Fig. 4

a Western blot assay for CK1δ and β-TRCP proteins in hucMSC-Ex (n = 4). b The internalization of hucMSC-Ex (PKH67, green) in NRK-52E cells was observed by confocal microscopy. Bar = 25 μm. c The expression of CK1δ and β-TRCP in NRK-52E cells under mechanical stress. Bar = 25 μm. d The expression of CK1δ, β-TRCP, and YAP in the kidneys of 14d UUO rats with hucMSC-Ex treatment was determined by immunohistochemistry. Bar = 100 μm. e Western blot assay for CK1δ and β-TRCP proteins in the kidneys of 14d UUO rats treated with hucMSC-Ex (n = 3). f NRK-52E cells were pre-treated with MG132 (20 μm) for 5 h followed by stiff gel stimulation in the presence of hucMSC-Ex. YAP protein level was detected by western blot. g The ubiquitination of YAP protein with hucMSC-Ex treatment determined by co-IP.